What about the rest? Do you download all notes every time the app is open? I’m torn between doing just that (like pretty much every other client) and subscribing and resubscribing just for chunks of data as needed. However relays don’t seem to like this approach as they sometimes reply slower with subsequent resubscribes.
Discussion
Iris asks 1000 latest events from known users on init. Some relays don't like the large authors filter (100-2000). Then it subscribes to all upcoming messages, but discards those that are from unknown authors.
When you open someone's profile, all their events are queried.